CN101392981A - Method and apparatus for obtaining liquid nitrogen by utilizing liquefied natural gas cold energy - Google Patents
Method and apparatus for obtaining liquid nitrogen by utilizing liquefied natural gas cold energy Download PDFInfo
- Publication number
- CN101392981A CN101392981A CNA2008101218605A CN200810121860A CN101392981A CN 101392981 A CN101392981 A CN 101392981A CN A2008101218605 A CNA2008101218605 A CN A2008101218605A CN 200810121860 A CN200810121860 A CN 200810121860A CN 101392981 A CN101392981 A CN 101392981A
- Authority
- CN
- China
- Prior art keywords
- nitrogen
- heat exchange
- gas device
- natural gas
- exchange gas
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 title claims abstract description 324
- 229910052757 nitrogen Inorganic materials 0.000 title claims abstract description 156
- 239000007788 liquid Substances 0.000 title claims abstract description 70
- 239000003949 liquefied natural gas Substances 0.000 title claims abstract description 28
- 238000000034 method Methods 0.000 title claims abstract description 16
- 238000001816 cooling Methods 0.000 claims abstract description 22
- 238000000926 separation method Methods 0.000 claims abstract description 9
- 239000007789 gas Substances 0.000 claims description 74
- 239000012530 fluid Substances 0.000 claims description 43
- 229910001873 dinitrogen Inorganic materials 0.000 claims description 12
- 238000005057 refrigeration Methods 0.000 claims description 12
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 230000008676 import Effects 0.000 claims description 3
- 238000003860 storage Methods 0.000 claims description 3
- 238000000605 extraction Methods 0.000 claims 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 abstract description 12
- 239000003345 natural gas Substances 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 3
- 239000002994 raw material Substances 0.000 abstract 2
- 230000008901 benefit Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- QJGQUHMNIGDVPM-BJUDXGSMSA-N Nitrogen-13 Chemical compound [13N] QJGQUHMNIGDVPM-BJUDXGSMSA-N 0.000 description 2
- QGZKDVFQNNGYKY-OUBTZVSYSA-N Ammonia-15N Chemical compound [15NH3] QGZKDVFQNNGYKY-OUBTZVSYSA-N 0.000 description 1
- OTMSDBZUPAUEDD-UHFFFAOYSA-N Ethane Chemical compound CC OTMSDBZUPAUEDD-UHFFFAOYSA-N 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 238000010795 Steam Flooding Methods 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 235000019628 coolness Nutrition 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 235000013410 fast food Nutrition 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- QGZKDVFQNNGYKY-NJFSPNSNSA-N nitrogen-16 Chemical compound [16NH3] QGZKDVFQNNGYKY-NJFSPNSNSA-N 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J1/00—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
- F25J1/0002—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures characterised by the fluid to be liquefied
- F25J1/0012—Primary atmospheric gases, e.g. air
- F25J1/0015—Nitrogen
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J1/00—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
- F25J1/003—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures characterised by the kind of cold generation within the liquefaction unit for compensating heat leaks and liquid production
- F25J1/0032—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures characterised by the kind of cold generation within the liquefaction unit for compensating heat leaks and liquid production using the feed stream itself or separated fractions from it, i.e. "internal refrigeration"
- F25J1/0035—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures characterised by the kind of cold generation within the liquefaction unit for compensating heat leaks and liquid production using the feed stream itself or separated fractions from it, i.e. "internal refrigeration" by gas expansion with extraction of work
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J1/00—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
- F25J1/003—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures characterised by the kind of cold generation within the liquefaction unit for compensating heat leaks and liquid production
- F25J1/0032—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures characterised by the kind of cold generation within the liquefaction unit for compensating heat leaks and liquid production using the feed stream itself or separated fractions from it, i.e. "internal refrigeration"
- F25J1/0035—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures characterised by the kind of cold generation within the liquefaction unit for compensating heat leaks and liquid production using the feed stream itself or separated fractions from it, i.e. "internal refrigeration" by gas expansion with extraction of work
- F25J1/0037—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures characterised by the kind of cold generation within the liquefaction unit for compensating heat leaks and liquid production using the feed stream itself or separated fractions from it, i.e. "internal refrigeration" by gas expansion with extraction of work of a return stream
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J1/00—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
- F25J1/003—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures characterised by the kind of cold generation within the liquefaction unit for compensating heat leaks and liquid production
- F25J1/0032—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures characterised by the kind of cold generation within the liquefaction unit for compensating heat leaks and liquid production using the feed stream itself or separated fractions from it, i.e. "internal refrigeration"
- F25J1/004—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures characterised by the kind of cold generation within the liquefaction unit for compensating heat leaks and liquid production using the feed stream itself or separated fractions from it, i.e. "internal refrigeration" by flash gas recovery
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J1/00—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
- F25J1/003—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures characterised by the kind of cold generation within the liquefaction unit for compensating heat leaks and liquid production
- F25J1/0032—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures characterised by the kind of cold generation within the liquefaction unit for compensating heat leaks and liquid production using the feed stream itself or separated fractions from it, i.e. "internal refrigeration"
- F25J1/0045—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures characterised by the kind of cold generation within the liquefaction unit for compensating heat leaks and liquid production using the feed stream itself or separated fractions from it, i.e. "internal refrigeration" by vaporising a liquid return stream
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J1/00—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
- F25J1/02—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures requiring the use of refrigeration, e.g. of helium or hydrogen ; Details and kind of the refrigeration system used; Integration with other units or processes; Controlling aspects of the process
- F25J1/0221—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures requiring the use of refrigeration, e.g. of helium or hydrogen ; Details and kind of the refrigeration system used; Integration with other units or processes; Controlling aspects of the process using the cold stored in an external cryogenic component in an open refrigeration loop
- F25J1/0224—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures requiring the use of refrigeration, e.g. of helium or hydrogen ; Details and kind of the refrigeration system used; Integration with other units or processes; Controlling aspects of the process using the cold stored in an external cryogenic component in an open refrigeration loop in combination with an internal quasi-closed refrigeration loop
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J1/00—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
- F25J1/02—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures requiring the use of refrigeration, e.g. of helium or hydrogen ; Details and kind of the refrigeration system used; Integration with other units or processes; Controlling aspects of the process
- F25J1/0228—Coupling of the liquefaction unit to other units or processes, so-called integrated processes
- F25J1/0234—Integration with a cryogenic air separation unit
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J1/00—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
- F25J1/02—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures requiring the use of refrigeration, e.g. of helium or hydrogen ; Details and kind of the refrigeration system used; Integration with other units or processes; Controlling aspects of the process
- F25J1/0243—Start-up or control of the process; Details of the apparatus used; Details of the refrigerant compression system used
- F25J1/0279—Compression of refrigerant or internal recycle fluid, e.g. kind of compressor, accumulator, suction drum etc.
- F25J1/0292—Refrigerant compression by cold or cryogenic suction of the refrigerant gas
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J2210/00—Processes characterised by the type or other details of the feed stream
- F25J2210/62—Liquefied natural gas [LNG]; Natural gas liquids [NGL]; Liquefied petroleum gas [LPG]
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Separation By Low-Temperature Treatments (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
Description
Claims (6)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2008101218605A CN101392981B (en) | 2008-10-21 | 2008-10-21 | Method and apparatus for obtaining liquid nitrogen by utilizing liquefied natural gas cold energy |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2008101218605A CN101392981B (en) | 2008-10-21 | 2008-10-21 | Method and apparatus for obtaining liquid nitrogen by utilizing liquefied natural gas cold energy |
Publications (2)
Publication Number | Publication Date |
---|---|
CN101392981A true CN101392981A (en) | 2009-03-25 |
CN101392981B CN101392981B (en) | 2011-10-05 |
Family
ID=40493399
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN2008101218605A Active CN101392981B (en) | 2008-10-21 | 2008-10-21 | Method and apparatus for obtaining liquid nitrogen by utilizing liquefied natural gas cold energy |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN101392981B (en) |
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101858683A (en) * | 2010-04-30 | 2010-10-13 | 浙江大学 | System for producing liquefied natural gas by utilizing liquid nitrogen cold energy |
CN101943512A (en) * | 2010-09-29 | 2011-01-12 | 中国海洋石油总公司 | Air separation method utilizing cold energy of liquefied natural gas |
CN102679687A (en) * | 2012-05-28 | 2012-09-19 | 上海宝钢气体有限公司 | Liquid air separation pre-treating device with pressure oxygen and process thereof |
CN103411386A (en) * | 2013-07-25 | 2013-11-27 | 杭州求是透平机制造有限公司 | Freezing expansion type chlorine liquefying method |
CN104807286A (en) * | 2014-10-31 | 2015-07-29 | 刘继福 | Nitrogen liquefaction system allowing recycling of LNG (Liquefied Natural Gas) cold energy |
CN104807289A (en) * | 2014-10-31 | 2015-07-29 | 刘继福 | Method for air separation production on liquid oxygen and liquid nitrogen through LNG (Liquefied Natural Gas) cold energy |
CN106288650A (en) * | 2015-06-26 | 2017-01-04 | 上海恩图能源科技有限公司 | Nitrogen at room reclaims LNG cold energy technique |
CN106766674A (en) * | 2016-12-09 | 2017-05-31 | 杭州杭氧股份有限公司 | A kind of ice chest deep cooling separating method of preparing isobutene through dehydrogenation of iso-butane project |
CN108474613A (en) * | 2015-12-07 | 2018-08-31 | 乔治洛德方法研究和开发液化空气有限公司 | Method for liquefied natural gas and nitrogen |
CN109883140A (en) * | 2019-03-29 | 2019-06-14 | 湖北浠水蓝天联合气体有限公司 | A kind of nitrogen gas liquefaction system after space division system rectifying |
CN110617660A (en) * | 2019-09-02 | 2019-12-27 | 北京航天发射技术研究所 | Liquid nitrogen refrigerating system of van-type refrigerator car and control method thereof |
CN114234556A (en) * | 2022-02-24 | 2022-03-25 | 杭州制氧机集团股份有限公司 | Boosting and vaporizing device for recycling liquid oxygen cold and using method thereof |
CN115751838A (en) * | 2022-11-02 | 2023-03-07 | 广东粤豫科技有限公司 | Energy-saving liquefaction system and energy-saving nitrogen liquefier device |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN201348420Y (en) * | 2008-10-21 | 2009-11-18 | 杭州杭氧股份有限公司 | Device capable of producing liquid nitrogen by utilizing cold energy of liquefied natural gas |
-
2008
- 2008-10-21 CN CN2008101218605A patent/CN101392981B/en active Active
Cited By (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101858683A (en) * | 2010-04-30 | 2010-10-13 | 浙江大学 | System for producing liquefied natural gas by utilizing liquid nitrogen cold energy |
CN101943512A (en) * | 2010-09-29 | 2011-01-12 | 中国海洋石油总公司 | Air separation method utilizing cold energy of liquefied natural gas |
CN101943512B (en) * | 2010-09-29 | 2012-08-29 | 中国海洋石油总公司 | Air separation method utilizing cold energy of liquefied natural gas |
CN102679687A (en) * | 2012-05-28 | 2012-09-19 | 上海宝钢气体有限公司 | Liquid air separation pre-treating device with pressure oxygen and process thereof |
CN103411386A (en) * | 2013-07-25 | 2013-11-27 | 杭州求是透平机制造有限公司 | Freezing expansion type chlorine liquefying method |
CN103411386B (en) * | 2013-07-25 | 2015-05-13 | 杭州求是透平机制造有限公司 | Freezing expansion type chlorine liquefying method |
CN104807286A (en) * | 2014-10-31 | 2015-07-29 | 刘继福 | Nitrogen liquefaction system allowing recycling of LNG (Liquefied Natural Gas) cold energy |
CN104807289A (en) * | 2014-10-31 | 2015-07-29 | 刘继福 | Method for air separation production on liquid oxygen and liquid nitrogen through LNG (Liquefied Natural Gas) cold energy |
CN104807289B (en) * | 2014-10-31 | 2016-02-03 | 刘继福 | LNG cold energy sky point is utilized to produce the method for liquid oxygen liquid nitrogen |
CN106288650A (en) * | 2015-06-26 | 2017-01-04 | 上海恩图能源科技有限公司 | Nitrogen at room reclaims LNG cold energy technique |
CN106288650B (en) * | 2015-06-26 | 2019-07-05 | 上海恩图能源科技有限公司 | Nitrogen at room recycles LNG cold energy technique |
CN108474613A (en) * | 2015-12-07 | 2018-08-31 | 乔治洛德方法研究和开发液化空气有限公司 | Method for liquefied natural gas and nitrogen |
CN108474613B (en) * | 2015-12-07 | 2020-10-23 | 乔治洛德方法研究和开发液化空气有限公司 | Method for liquefying natural gas and nitrogen |
CN106766674A (en) * | 2016-12-09 | 2017-05-31 | 杭州杭氧股份有限公司 | A kind of ice chest deep cooling separating method of preparing isobutene through dehydrogenation of iso-butane project |
CN106766674B (en) * | 2016-12-09 | 2019-03-08 | 杭州杭氧股份有限公司 | A kind of ice chest deep cooling separating method of preparing isobutene through dehydrogenation of iso-butane project |
CN109883140A (en) * | 2019-03-29 | 2019-06-14 | 湖北浠水蓝天联合气体有限公司 | A kind of nitrogen gas liquefaction system after space division system rectifying |
CN110617660A (en) * | 2019-09-02 | 2019-12-27 | 北京航天发射技术研究所 | Liquid nitrogen refrigerating system of van-type refrigerator car and control method thereof |
CN110617660B (en) * | 2019-09-02 | 2021-10-15 | 北京航天发射技术研究所 | Liquid nitrogen refrigerating system of van-type refrigerator car and control method thereof |
CN114234556A (en) * | 2022-02-24 | 2022-03-25 | 杭州制氧机集团股份有限公司 | Boosting and vaporizing device for recycling liquid oxygen cold and using method thereof |
CN115751838A (en) * | 2022-11-02 | 2023-03-07 | 广东粤豫科技有限公司 | Energy-saving liquefaction system and energy-saving nitrogen liquefier device |
CN115751838B (en) * | 2022-11-02 | 2024-01-02 | 广东粤豫科技有限公司 | Energy-saving external liquefaction system and energy-saving nitrogen and oxygen external liquefier device |
Also Published As
Publication number | Publication date |
---|---|
CN101392981B (en) | 2011-10-05 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN101392981B (en) | Method and apparatus for obtaining liquid nitrogen by utilizing liquefied natural gas cold energy | |
CN103215093B (en) | Miniature skid type nitrogen expansion natural gas liquefaction system and method thereof | |
CN201348420Y (en) | Device capable of producing liquid nitrogen by utilizing cold energy of liquefied natural gas | |
CN105444523B (en) | Using BOG itself compression-expansions liquefaction BOG re-liquefied system and technique | |
CN103940199B (en) | Method and device for extracting ethane-mixed hydrocarbon from natural gas | |
WO2007021351A1 (en) | Natural gas liquefaction process for lng | |
AU2009208153A1 (en) | Process and apparatus for the liquefaction of carbon dioxide | |
CN103175381B (en) | Process for preparing LNG (liquefied natural gas) by low-concentration coal bed gas oxygen-containing cryogenic liquefaction | |
CN100472159C (en) | Air separating device and method therefor | |
CN204115392U (en) | With the full air separation units producing liquids of air supply compressor | |
CN103868324B (en) | The natural gas liquefaction of small-sized skid-mounted type mix refrigerant and NGL reclaim integrated system | |
CN103175380B (en) | Device for preparing LNG (liquefied natural gas) by low-concentration coal bed gas oxygen-containing cryogenic liquefaction | |
CN101915495B (en) | Full liquid-air separation unit using liquefied natural gas cold energy and method thereof | |
CN203837413U (en) | Device for extracting ethane and hydrocarbon mixture from natural gas | |
CN101614464B (en) | Method for liquefying natural gas through double-expansion of high-temperature and low-temperature nitrogen gas | |
Li et al. | Thermodynamic Analysis‐Based Improvement for the Boil‐off Gas Reliquefaction Process of Liquefied Ethylene Vessels | |
CN110017628A (en) | A kind of LNG cold energy use system and method based on argon circulation | |
CN112229142A (en) | Low-coupling multi-strand composite expansion air separation flow device and method | |
CN101608859B (en) | Method for liquefying high-low pressure nitrogen double-expansion natural gas | |
CN201387202Y (en) | Air separation system capable of efficiently utilizing cold energy of liquefied natural gas | |
CN201876055U (en) | Full-liquid air separation device using cold energy of liquefied natural gas | |
EP2796819A2 (en) | Method and apparatus for the liquefaction of natural gas | |
CN112980490B (en) | Light hydrocarbon recovery system for dry gas low-pressure expansion oilfield associated gas and use method | |
CN213020534U (en) | Helium recovery system | |
CN103292574B (en) | Utilize the device and method of decompressor direct liquefaction pipe natural gas |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
CB03 | Change of inventor or designer information |
Inventor after: He Hui Inventor after: Xia Hongyan Inventor after: Lu Jie Inventor before: He Hui Inventor before: Lu Jie |
|
CB03 | Change of inventor or designer information | ||
CP03 | Change of name, title or address |
Address after: No.799, Xiangfu Road, Qingshanhu street, Lin'an District, Hangzhou City, Zhejiang Province Patentee after: Hangzhou oxygen generator group Co.,Ltd. Address before: 310004 No. 388 Dong Xin Road, Xiacheng District, Zhejiang, Hangzhou Patentee before: HANGZHOU HANGYANG Co.,Ltd. |
|
CP03 | Change of name, title or address | ||
CP01 | Change in the name or title of a patent holder |
Address after: 799 Xiangfu Road, Qingshanhu street, Lin'an District, Hangzhou City, Zhejiang Province Patentee after: Hang Yang Group Co.,Ltd. Address before: 799 Xiangfu Road, Qingshanhu street, Lin'an District, Hangzhou City, Zhejiang Province Patentee before: Hangzhou oxygen generator group Co.,Ltd. |
|
CP01 | Change in the name or title of a patent holder |